Wrenching Robot Settles Which Slips 1st
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Torque Test Channel
Description
Lifetime of weekly updated rankings: https://torquetestchannel.etsy.com/listing/1152216140/torque-test-channel-spreadsheet-leader Which wrench design turns a bolt the most before slipping, or more importantly how do other designs compare to the best one? Today we test open end, flarenut, spline, 12 point and 6 point wrench designs to try and put a nail in the coffin of this debate with the use of our wrench turning robot Pushy. We do not accept any tools shown on the channel from any brand, nor do we take any sponsorships, partnerships, discounts, product placement deals, pre-market brand samples, money, items or compensation of any kind from brands, tool makers or otherwise in the planning or creation of these videos. As always, the creator of this channel is also working in product development for Astro Tools. Always consider multiple sources when looking at a tool! 0:00 What we're testing 1:33 12-point 3:37 Rounded 4:53 Open End 5:58 Flarenut 7:21 Spline 8:48 6-point 9:46 Grade 5 (lil' softer)
Products Reviewed (5)
Snap-On
6-Point Box End Wrench
Best Overall - Achieved highest torque at 390.4 Nm (288 ft-lbs) on 5/8 grade 8 and 457.8 Nm (338 ft-lbs) on 3/4 grade 5. Only 20.6% loss on rounded fasteners. Scored 100% across all tests as the baseline for comparison.
Snap-On
12-Point Box End Wrench
Achieved 339.6 Nm (250 ft-lbs) on grade 8, but dropped to 166 Nm on rounded fasteners (51.1% loss). Averaged 76.4% performance compared to 6-point. Falls off quickly when hardware becomes rounded.
Snap-On
Spline Box End Wrench
Achieved 279.6 Nm on grade 8, performed at 68.4% compared to 6-point overall. Better than expected on rounded fasteners compared to 12-point. Takes material with it when slipping.
Snap-On
Flare Nut Wrench
Achieved 137.6 Nm on grade 8, performed at 35.5% compared to 6-point. Excels on imperfect hardware with only 39.2% reduction on rounded fasteners. Best for hydraulic lines and brake fittings.
Snap-On
Open End Wrench
Achieved only 111.1 Nm (82 ft-lbs) on grade 8, performed at 27.3% compared to 6-point. Described as 'dog water' but only used when access requires it. 48.2% loss on rounded fasteners.